Flow report

Montana River Levels & Streamflow

As of Aug 27, 2026, Montana rivers are running at 84% of normal across 171 USGS gauges — the highest is 9,140 cfs on the Kootenai River Bl Libby Dam Nr Libby Mt. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Montana.

USGS gauges
171
State percent normal
84%
Paddle runs
17
Updated
Aug 27
Open the Montana flow layer on the map Every USGS streamgauge filtered to Montana.
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August
27
2026
Flow briefing

Streamflow levels across Montana are currently 84% of normal, with the Kootenai River Bl Libby Dam Nr Libby Mt reporting the highest discharge in the state at 9,140 cfs and a gauge stage of 19.88 ft.

Meanwhile, the Bighorn River Near St. Xavier is seeing a spike today — up 26% since yesterday and currently running near peak.

Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Montana's named rivers.

Montana at a glance

State-wide streamflow overview

The Montana flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.

Percent of normal

84%

100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.

Highest discharge

Kootenai River Bl Libby Dam Nr Libby Mt 9,140 cfs

Gauge stage 19.88 ft

Biggest 24h spike

Bighorn River Near St. Xavier +26%

Now 1,560 cfs

Network coverage

Gauges + rivers tracked 171 + 0

USGS gauges feeding 0 named rivers in Montana.

Full streamgauge inventory

Montana USGS streamgauges

Every USGS gauge Snoflo tracks in Montana. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.

171 gauges
Streamgage Streamflow Gage height Water temp Air temp Elevation Watershed
Kootenai River Bl Libby Dam Nr Libby Mt, Mt
10 hours ago · USGS 12301933
9,140 cfs 19.88 ft 39°F 54°F 2,121 ft Upper Kootenai
Clark Fork Near Plains Mt, Mt
10 hours ago · USGS 12389000
8,120 cfs 4.04 ft · 60°F 2,456 ft Lower Clark Fork
Missouri River Near Wolf Point Mt, Mt
10 hours ago · USGS 06177000
7,170 cfs 10.78 ft 63°F 55°F 1,968 ft Prarie Elk-Wolf
Missouri River Near Culbertson Mt, Mt
10 hours ago · USGS 06185500
6,950 cfs 3.12 ft · 52°F 1,889 ft Charlie-Little Muddy
Flathead River At Perma Mt, Mt
10 hours ago · USGS 12388700
6,090 cfs 7.86 ft 73°F 60°F 2,479 ft Lower Flathead
Flathead River Near Polson Mt, Mt
9 hours ago · USGS 12372000
5,590 cfs 4.68 ft 72°F 54°F 2,697 ft Lower Flathead
Missouri River Near Landusky Mt, Mt
10 hours ago · USGS 06115200
5,270 cfs 13.21 ft 73°F 63°F 2,247 ft Fort Peck Reservoir
Missouri River At Virgelle Mt, Mt
10 hours ago · USGS 06109500
4,800 cfs 2.98 ft · 62°F 2,518 ft Bullwhacker-Dog
Flathead River At Columbia Falls Mt, Mt
10 hours ago · USGS 12363000
4,550 cfs 4.33 ft 60°F 55°F 2,987 ft Flathead Lake
Missouri River At Fort Benton Mt, Mt
10 hours ago · USGS 06090800
4,300 cfs 1.91 ft · 60°F 2,621 ft Upper Missouri-Dearborn
Missouri River Near Great Falls Mt, Mt
10 hours ago · USGS 06090300
3,680 cfs 2.86 ft · 60°F 3,029 ft Upper Missouri-Dearborn
Missouri River Bl Holter Dam Nr Wolf Cr Mt, Mt
10 hours ago · USGS 06066500
3,660 cfs 3.25 ft 65°F 60°F 3,465 ft Upper Missouri
Missouri River At Cascade Mt, Mt
10 hours ago · USGS 06074000
3,550 cfs 6.69 ft · 58°F 3,345 ft Upper Missouri-Dearborn
Missouri River Near Ulm Mt, Mt
10 hours ago · USGS 06078200
3,480 cfs 2.83 ft · 59°F 3,316 ft Upper Missouri-Dearborn
Missouri River Bl Hauser Lake Nr Helena Mt, Mt
10 hours ago · USGS 06065500
3,430 cfs 3.94 ft · 55°F 3,588 ft Upper Missouri
Yellowstone River At Forsyth Mt, Mt
10 hours ago · USGS 06295000
3,380 cfs 1.15 ft · 61°F 2,524 ft Lower Yellowstone-Sunday
Yellowstone River At Miles City Mt, Mt
10 hours ago · USGS 06309000
3,180 cfs 2.26 ft · 61°F 2,336 ft Lower Yellowstone-Sunday
Yellowstone River At Glendive Mt, Mt
10 hours ago · USGS 06327500
3,090 cfs 42.00 ft · 55°F 2,045 ft Lower Yellowstone
S F Flathead River Nr Columbia Falls Mt, Mt
10 hours ago · USGS 12362500
3,040 cfs 6.29 ft 58°F 55°F 3,049 ft South Fork Flathead
Yellowstone River At Billings Mt, Mt
10 hours ago · USGS 06214500
2,710 cfs 2.73 ft 71°F 62°F 3,090 ft Upper Yellowstone-Pompeys Pillar
Clark Fork At St. Regis Mt, Mt
10 hours ago · USGS 12354500
2,450 cfs 5.11 ft · 56°F 2,604 ft Middle Clark Fork
Yellowstone River Near Livingston Mt, Mt
10 hours ago · USGS 06192500
2,050 cfs · 65°F 56°F 4,554 ft Upper Yellowstone
Yellowstone River Near Sidney Mt, Mt
10 hours ago · USGS 06329500
1,940 cfs · 73°F 52°F 1,889 ft Lower Yellowstone
Clark Fork Below Missoula Mt, Mt
10 hours ago · USGS 12353000
1,790 cfs · · 55°F 3,103 ft Middle Clark Fork
Yellowstone River At Corwin Springs Mt, Mt
10 hours ago · USGS 06191500
1,780 cfs 1.86 ft 65°F 53°F 5,094 ft Upper Yellowstone
Bighorn River Near St. Xavier, Mt
10 hours ago · USGS 06287000
1,570 cfs 59.70 ft 53°F 61°F 3,152 ft Lower Bighorn
Bighorn River Ab Tullock Cr Nr Bighorn Mt, Mt
10 hours ago · USGS 06294500
1,470 cfs · · 60°F 2,723 ft Lower Bighorn
Missouri River At Toston Mt, Mt
10 hours ago · USGS 06054500
1,460 cfs 2.87 ft 69°F 56°F 3,911 ft Upper Missouri
Madison River Bl Ennis Lake Nr Mcallister Mt, Mt
10 hours ago · USGS 06041000
1,150 cfs 3.51 ft 68°F 59°F 4,705 ft Madison
Clark Fork Above Missoula Mt, Mt
9 hours ago · USGS 12340500
1,130 cfs 2.41 ft 65°F 56°F 3,208 ft Middle Clark Fork
Madison River Near Cameron Mt, Mt
10 hours ago · USGS 06040000
949 cfs 2.18 ft 62°F 51°F 5,149 ft Madison
Madison River At Kirby Ranch Nr Cameron Mt, Mt
10 hours ago · USGS 06038800
875 cfs 1.78 ft 60°F 49°F 5,874 ft Madison
N F Flathead River Nr Columbia Falls Mt, Mt
10 hours ago · USGS 12355500
869 cfs 2.09 ft 62°F 53°F 3,151 ft North Fork Flathead
St. Mary River Near Babb Mt, Mt
10 hours ago · USGS 05017500
846 cfs 3.12 ft · 54°F 4,474 ft St. Mary
Middle Fork Flathead River Nr West Glacier Mt, Mt
10 hours ago · USGS 12358500
782 cfs 2.02 ft 56°F 52°F 3,131 ft Middle Fork Flathead
Madison River Bl Hebgen Lake Nr Grayling Mt, Mt
10 hours ago · USGS 06038500
760 cfs 1.61 ft 60°F 48°F 6,466 ft Madison
Marias River Near Chester Mt, Mt
10 hours ago · USGS 06101500
732 cfs 3.76 ft · 58°F 2,822 ft Marias
Marias River Near Loma Mt, Mt
10 hours ago · USGS 06102050
710 cfs 1.48 ft 71°F 60°F 2,580 ft Marias
Bitterroot River Near Missoula Mt, Mt
10 hours ago · USGS 12352500
690 cfs 3.09 ft 67°F 54°F 3,130 ft Bitterroot
Blackfoot River Near Bonner Mt, Mt
10 hours ago · USGS 12340000
634 cfs 2.16 ft 65°F 57°F 3,357 ft Blackfoot
St. Mary Canal At St. Mary Crossing Near Babb Mt, Mt
10 hours ago · USGS 05018500
600 cfs 23.55 ft · 57°F 4,462 ft St. Mary
Milk River At Havre Mt, Mt
10 hours ago · USGS 06140500
584 cfs 2.07 ft · 60°F 2,468 ft Middle Milk
Clark Fork At Turah Bridge Nr Bonner Mt, Mt
10 hours ago · USGS 12334550
545 cfs 1.39 ft · 56°F 3,321 ft Upper Clark Fork
Milk River Near Harlem Mt, Mt
10 hours ago · USGS 06154100
534 cfs 6.46 ft · 58°F 2,329 ft Middle Milk
Stillwater River Near Absarokee Mt, Mt
10 hours ago · USGS 06205000
530 cfs 1.81 ft 63°F 56°F 3,880 ft Stillwater
Swan River Near Bigfork Mt, Mt
10 hours ago · USGS 12370000
500 cfs 2.44 ft · 58°F 3,081 ft Swan
Milk River At Eastern Crossing Of Int Bndry, Mt
10 hours ago · USGS 06135000
496 cfs 3.96 ft · 57°F 2,656 ft Upper Milk
Sun River Near Vaughn Mt, Mt
10 hours ago · USGS 06089000
488 cfs 2.41 ft · 57°F 3,330 ft Sun
S F Flathead R Ab Twin C Nr Hungry Horse Mt, Mt
10 hours ago · USGS 12359800
482 cfs 4.94 ft 62°F 53°F 3,586 ft South Fork Flathead
Bitterroot River Near Darby Mt, Mt
10 hours ago · USGS 12344000
464 cfs 2.27 ft 62°F 59°F 3,955 ft Bitterroot
Gallatin River Near Gallatin Gateway Mt, Mt
10 hours ago · USGS 06043500
408 cfs 1.48 ft · 55°F 5,189 ft Gallatin
Jefferson River Near Twin Bridges Mt, Mt
10 hours ago · USGS 06026500
383 cfs 2.56 ft 67°F 53°F 4,588 ft Jefferson
Powder River At Moorhead Mt, Mt
11 hours ago · USGS 06324500
365 cfs 3.51 ft · 61°F 3,350 ft Middle Powder
West Fork Bitterroot River Nr Conner Mt, Mt
10 hours ago · USGS 12342500
359 cfs 2.13 ft · 51°F 4,678 ft Bitterroot
Gallatin River At Logan Mt, Mt
10 hours ago · USGS 06052500
350 cfs 4.54 ft 66°F 53°F 4,093 ft Gallatin
Jefferson River Near Three Forks Mt, Mt
10 hours ago · USGS 06036650
333 cfs 2.00 ft 69°F 52°F 4,066 ft Jefferson
Clarks Fork Yellowstone River At Edgar Mt, Mt
10 hours ago · USGS 06208500
326 cfs 1.49 ft · 57°F 3,450 ft Clarks Fork Yellowstone
Flathead River At Flathead British Columbia, Mt
10 hours ago · USGS 12355000
295 cfs 4.54 ft · 46°F 3,983 ft North Fork Flathead
Bitterroot River At Bell Crossing Nr Victor Mt, Mt
10 hours ago · USGS 12350250
293 cfs 4.21 ft · 52°F 3,328 ft Bitterroot
Madison River Near West Yellowstone Mt, Mt
10 hours ago · USGS 06037500
290 cfs 1.62 ft 66°F 41°F 6,634 ft Madison
Sun River Bl Diversion Dam Nr Augusta Mt, Mt
10 hours ago · USGS 06080900
290 cfs 4.33 ft · 59°F 4,372 ft Sun
Rock Creek Near Clinton Mt, Mt
10 hours ago · USGS 12334510
260 cfs 5.26 ft 62°F 54°F 3,532 ft Upper Clark Fork
Beaverhead River At Barretts Mt, Mt
10 hours ago · USGS 06016000
245 cfs 1.23 ft · 54°F 5,279 ft Beaverhead
Clark Fork Near Drummond Mt, Mt
10 hours ago · USGS 12331800
243 cfs 2.39 ft · 50°F 3,803 ft Upper Clark Fork
Big Hole River At Maiden Rock Nr Divide Mt, Mt
10 hours ago · USGS 06025250
233 cfs 2.74 ft 60°F 54°F 5,315 ft Big Hole
Rock Creek Near Red Lodge Mt, Mt
10 hours ago · USGS 06209500
232 cfs 6.04 ft · 55°F 6,392 ft Clarks Fork Yellowstone
Muddy Creek At Vaughn Mt, Mt
10 hours ago · USGS 06088500
228 cfs 4.29 ft · 56°F 3,347 ft Sun
Clarks Fork Yellowstone River Nr Belfry Mt, Mt
10 hours ago · USGS 06207500
227 cfs · · 60°F 3,994 ft Clarks Fork Yellowstone
Sun River Bl Willow Cr Nr Augusta Mt, Mt
10 hours ago · USGS 06082200
223 cfs 2.24 ft · 57°F 3,966 ft Sun
Nf Blackfoot R Ab Dry Gulch Nr Ovando Mt, Mt
10 hours ago · USGS 12338300
219 cfs 4.56 ft 53°F 45°F 4,075 ft Blackfoot
Milk River At Juneberg Bridge Nr Saco Mt, Mt
10 hours ago · USGS 06164510
216 cfs 3.22 ft · 58°F 2,147 ft Frenchman
Judith River Nr Mouth, Mt
10 hours ago · USGS 06114700
211 cfs 4.75 ft · 61°F 2,496 ft Judith
Marias River Near Shelby Mt, Mt
10 hours ago · USGS 06099500
203 cfs 2.67 ft · 57°F 3,099 ft Marias
West Rosebud Creek Near Roscoe Mt, Mt
11 hours ago · USGS 06204050
196 cfs 1.28 ft · 52°F 6,594 ft Stillwater
Big Hole River Near Melrose Mt, Mt
10 hours ago · USGS 06025500
193 cfs 1.28 ft 65°F 52°F 5,043 ft Big Hole
Ruby River Bl Reservoir Nr Alder Mt, Mt
10 hours ago · USGS 06020600
187 cfs 3.16 ft · 54°F 5,291 ft Ruby
Big Hole River Near Glen Mt, Mt
10 hours ago · USGS 06026210
185 cfs 2.20 ft 66°F 52°F 4,847 ft Big Hole
Tongue R Bl Brandenberg Bridge Nr Ashland Mt, Mt
10 hours ago · USGS 06307830
182 cfs 2.72 ft 73°F 63°F 2,749 ft Lower Tongue
Blackfoot R Ab Nevada Cr Nr Helmville Mt, Mt
10 hours ago · USGS 12335100
181 cfs 3.82 ft · 46°F 4,262 ft Blackfoot
Milk River At Malta Mt, Mt
10 hours ago · USGS 06155500
171 cfs 2.01 ft · 59°F 2,224 ft Middle Milk
Milk River At Nashua Mt, Mt
10 hours ago · USGS 06174500
163 cfs 1.85 ft 72°F 59°F 2,036 ft Lower Milk
Clark Fork At Goldcreek Mt, Mt
10 hours ago · USGS 12324680
155 cfs 4.17 ft · 49°F 4,180 ft Upper Clark Fork
Thompson River Near Thompson Falls Mt, Mt
10 hours ago · USGS 12389500
155 cfs 2.77 ft · 62°F 2,440 ft Lower Clark Fork
Two Medicine River Bl South Fork Nr Browning Mt, Mt
10 hours ago · USGS 06091700
138 cfs 2.39 ft · 56°F 4,153 ft Two Medicine
Tongue R At Birney Day School Br Nr Birney Mt, Mt
10 hours ago · USGS 06307616
132 cfs 1.17 ft · 61°F 3,074 ft Lower Tongue
Sun River At Simms Mt, Mt
10 hours ago · USGS 06085800
119 cfs 2.48 ft 67°F 57°F 3,550 ft Sun
Gardner River Near Mammoth Ynp, Mt
10 hours ago · USGS 06191000
114 cfs 1.87 ft · 52°F 5,632 ft Yellowstone Headwaters
Clark Fork At Deer Lodge Mt, Mt
10 hours ago · USGS 12324200
111 cfs 2.46 ft 64°F 50°F 4,508 ft Upper Clark Fork
North Fork Sun River Near Augusta Mt, Mt
10 hours ago · USGS 06078500
110 cfs 3.46 ft · 50°F 4,792 ft Sun
Madison River Ab Powerplant Nr Mcallister Mt, Mt
10 hours ago · USGS 06040800
108 cfs 3.14 ft · 59°F 4,713 ft Madison
Ruby River Ab Reservoir Nr Alder Mt, Mt
10 hours ago · USGS 06019500
103 cfs 2.93 ft · 53°F 5,410 ft Ruby
Tongue River At Tongue R Dam Nr Decker Mt, Mt
10 hours ago · USGS 06307500
102 cfs 10.66 ft 69°F 57°F 3,352 ft Upper Tongue
Boulder River At Big Timber Mt, Mt
10 hours ago · USGS 06200000
92 cfs 1.08 ft · 57°F 4,069 ft Upper Yellowstone
Flint Creek At Maxville Mt, Mt
10 hours ago · USGS 12329500
89 cfs 2.32 ft · 55°F 4,832 ft Flint-Rock
Yaak River Near Troy Mt, Mt
10 hours ago · USGS 12304500
88 cfs 2.91 ft · 55°F 1,846 ft Lower Kootenai
Teton River Bl South Fork Nr Choteau Mt, Mt
10 hours ago · USGS 06102500
88 cfs 4.39 ft · 57°F 4,785 ft Teton
South Fork Sun River Near Augusta Mt, Mt
10 hours ago · USGS 06079000
87 cfs 1.17 ft · 50°F 4,791 ft Sun
Warm Springs Creek Near Anaconda Mt, Mt
10 hours ago · USGS 12323760
87 cfs 2.36 ft · 53°F 5,131 ft Upper Clark Fork
Musselshell River Near Roundup Mt, Mt
10 hours ago · USGS 06126500
86 cfs 1.68 ft · 59°F 3,191 ft Upper Musselshell
St. Regis River Near St. Regis, Mt
10 hours ago · USGS 12354000
82 cfs 1.72 ft · 53°F 2,662 ft Middle Clark Fork
Beaverhead River At Dillon Mt, Mt
10 hours ago · USGS 06017000
81 cfs 3.29 ft · 51°F 5,099 ft Beaverhead
Badger Cr Bl Four Horns Canal Nr Browning Mt, Mt
10 hours ago · USGS 06093200
81 cfs 4.30 ft · 56°F 4,122 ft Two Medicine
Smith River Bl Eagle Cr Nr Fort Logan Mt, Mt
10 hours ago · USGS 06077200
80 cfs 2.93 ft 63°F 54°F 4,354 ft Smith
Little Bighorn River At State Line Nr Wyola Mt, Mt
10 hours ago · USGS 06289000
78 cfs 2.05 ft · 69°F 4,332 ft Little Bighorn
Smith River Near Eden Mt, Mt
10 hours ago · USGS 06077500
73 cfs 2.63 ft 66°F 61°F 3,500 ft Smith
Milk River At Tampico Mt, Mt
10 hours ago · USGS 06172310
72 cfs 2.33 ft · 58°F 2,101 ft Lower Milk
Beaverhead River Near Twin Bridges Mt, Mt
10 hours ago · USGS 06018500
70 cfs 3.51 ft · 50°F 4,814 ft Beaverhead
Big Hole River Bl Mudd Cr Nr Wisdom Mt, Mt
10 hours ago · USGS 06024540
69 cfs 2.60 ft 77°F 39°F 5,894 ft Big Hole
Clark Fork Near Galen Mt, Mt
10 hours ago · USGS 12323800
67 cfs 1.94 ft 60°F 51°F 4,753 ft Upper Clark Fork
Fisher River Near Libby Mt, Mt
10 hours ago · USGS 12302055
65 cfs 2.69 ft · 55°F 2,142 ft Fisher
Mission Cr Ab Reservoir Nr St Ignatius Mt, Mt
10 hours ago · USGS 12377150
59 cfs 1.98 ft · 63°F 3,517 ft Lower Flathead
Ruby River Near Twin Bridges Mt, Mt
10 hours ago · USGS 06023000
55 cfs 2.34 ft 65°F 50°F 4,667 ft Ruby
Hyalite C At Hyalite R S Nr Bozeman Mt, Mt
10 hours ago · USGS 06050000
55 cfs 2.53 ft · 55°F 5,557 ft Gallatin
Prospect Creek At Thompson Falls Mt, Mt
10 hours ago · USGS 12390700
54 cfs · · 55°F 2,424 ft Lower Clark Fork
Musselshell River At Musselshell Mt, Mt
10 hours ago · USGS 06127500
52 cfs 2.02 ft · 59°F 2,987 ft Middle Musselshell
Tongue River At State Line Nr Decker Mt, Mt
10 hours ago · USGS 06306300
51 cfs 2.00 ft 71°F 55°F 3,436 ft Upper Tongue
Beaver Creek Near Hinsdale Mt, Mt
10 hours ago · USGS 06167500
51 cfs 2.92 ft · 59°F 2,143 ft Beaver
Middle Fork Rock Cr Nr Philipsburg Mt, Mt
10 hours ago · USGS 12332000
50 cfs 1.55 ft · 49°F 5,450 ft Flint-Rock
Belt Creek Near Monarch Mt, Mt
10 hours ago · USGS 06090500
50 cfs 2.26 ft · 65°F 3,980 ft Belt
Smith River Near Ft Logan Mt, Mt
10 hours ago · USGS 06076690
47 cfs 2.66 ft · 53°F 4,402 ft Smith
Warm Springs Creek At Warm Springs Mt, Mt
10 hours ago · USGS 12323770
46 cfs 3.15 ft 56°F 52°F 4,818 ft Upper Clark Fork
Swiftcurrent Creek At Many Glacier Mt, Mt
10 hours ago · USGS 05014500
45 cfs 1.69 ft · 66°F 4,881 ft St. Mary
Willow Creek Near Boyd Mt, Mt
10 hours ago · USGS 06211500
42 cfs 2.88 ft · 60°F 4,267 ft Clarks Fork Yellowstone
Milk River Near Dodson Mt, Mt
10 hours ago · USGS 06155030
42 cfs 3.62 ft · 59°F 2,267 ft Middle Milk
Shields River Nr Livingston Mt, Mt
10 hours ago · USGS 06195600
41 cfs · · 53°F 4,419 ft Shields
Flint Creek Near Drummond Mt, Mt
10 hours ago · USGS 12331500
38 cfs 1.89 ft · 46°F 4,027 ft Flint-Rock
Red Lodge Cr Ab Cooney Re Nr Boyd Mt, Mt
10 hours ago · USGS 06211000
36 cfs 1.91 ft · 60°F 4,254 ft Clarks Fork Yellowstone
Cut Bank Creek At Cut Bank Mt, Mt
10 hours ago · USGS 06099000
31 cfs 1.73 ft · 54°F 3,567 ft Cut Bank
Flint Creek Near Southern Cross Mt, Mt
10 hours ago · USGS 12325500
31 cfs · · 49°F 5,594 ft Flint-Rock
Little Blackfoot River Near Garrison Mt, Mt
10 hours ago · USGS 12324590
30 cfs · · 49°F 4,348 ft Upper Clark Fork
South Fork Jocko River Near Arlee Mt, Mt
10 hours ago · USGS 12381400
28 cfs 1.32 ft · 60°F 4,032 ft Lower Flathead
Musselshell River At Harlowton Mt, Mt
10 hours ago · USGS 06120500
27 cfs 2.80 ft · 55°F 4,175 ft Upper Musselshell
Red Rock Cr Ab Lakes Nr Lakeview Mt, Mt
10 hours ago · USGS 06006000
23 cfs 2.68 ft 55°F 48°F 6,643 ft Red Rock
Boulder Creek At Maxville Mt, Mt
10 hours ago · USGS 12330000
23 cfs 1.31 ft · 55°F 4,773 ft Flint-Rock
Tongue River At Miles City Mt, Mt
10 hours ago · USGS 06308500
22 cfs 1.06 ft 71°F 61°F 2,373 ft Lower Tongue
Dearborn River Near Craig Mt, Mt
10 hours ago · USGS 06073500
22 cfs 3.04 ft 66°F 57°F 3,800 ft Upper Missouri-Dearborn
Boulder River Near Boulder Mt, Mt
10 hours ago · USGS 06033000
21 cfs 4.97 ft · 56°F 4,823 ft Boulder
Big Sandy Creek Near Havre Mt, Mt
10 hours ago · USGS 06139500
21 cfs 2.28 ft · 60°F 2,505 ft Big Sandy
Poplar River Near Poplar Mt, Mt
10 hours ago · USGS 06181000
19 cfs 6.80 ft · 54°F 1,960 ft Poplar
Little Prickly Pear Cr At Wolf Cr Mt, Mt
10 hours ago · USGS 06071300
18 cfs 2.68 ft · 59°F 3,561 ft Upper Missouri
Little Bighorn River Near Hardin Mt, Mt
10 hours ago · USGS 06294000
18 cfs 2.10 ft · 58°F 2,894 ft Little Bighorn
Soda Butte Cr At Park Bndry At Silver Gate, Mt
10 hours ago · USGS 06187915
17 cfs · · 43°F 7,347 ft Yellowstone Headwaters
Silver Bow Creek At Warm Springs Mt, Mt
10 hours ago · USGS 12323750
16 cfs 1.79 ft 62°F 52°F 4,805 ft Upper Clark Fork
Red Rock R Bl Lima Reservoir Nr Monida Mt, Mt
10 hours ago · USGS 06012500
16 cfs 1.34 ft · 53°F 6,539 ft Red Rock
Silver Bow Creek At Opportunity Mt, Mt
10 hours ago · USGS 12323600
16 cfs 1.81 ft 62°F 53°F 4,917 ft Upper Clark Fork
Silver Bow Cr Bl Blacktail Cr At Butte Mt, Mt
10 hours ago · USGS 12323250
15 cfs 1.23 ft 62°F 52°F 5,426 ft Upper Clark Fork
Musselshell River At Mosby Mt, Mt
10 hours ago · USGS 06130500
15 cfs 1.94 ft · 62°F 2,497 ft Lower Musselshell
Musselshell River Nr Martinsdale, Mt
10 hours ago · USGS 06119600
12 cfs 1.21 ft · 53°F 4,668 ft Upper Musselshell
Lost Creek Near Galen, Mt
10 hours ago · USGS 12323850
11 cfs 1.83 ft 58°F 51°F 4,752 ft Upper Clark Fork
Prickly Pear Creek Near Clancy Mt, Mt
10 hours ago · USGS 06061500
9 cfs · · 56°F 4,081 ft Upper Missouri
Teton River At Loma Mt, Mt
10 hours ago · USGS 06108800
8 cfs · · 60°F 2,570 ft Marias
Big Hole River Bl Big Lake Cr At Wisdom Mt, Mt
10 hours ago · USGS 06024450
7 cfs 1.86 ft 61°F 37°F 6,048 ft Big Hole
Musselshell River Ab Mud Cr Nr Shawmut Mt, Mt
10 hours ago · USGS 06123030
6 cfs 2.44 ft · 57°F 3,781 ft Upper Musselshell
Willow Creek Near Harrison Mt, Mt
10 hours ago · USGS 06035000
6 cfs 1.03 ft 61°F 55°F 4,760 ft Jefferson
N F Milk River Ab St Mary Ca Nr Browning Mt, Mt
10 hours ago · USGS 06133500
5 cfs 1.58 ft · 55°F 4,226 ft Milk Headwaters
Willow Creek At Opportunity, Mt
10 hours ago · USGS 12323720
5 cfs 3.89 ft 56°F 52°F 4,924 ft Upper Clark Fork
Big Muddy Creek Near Antelope Mt, Mt
10 hours ago · USGS 06183450
3 cfs 1.17 ft · 52°F 1,972 ft Big Muddy
Mill Creek At Opportunity, Mt
10 hours ago · USGS 12323700
3 cfs 2.18 ft 59°F 52°F 4,938 ft Upper Clark Fork
Tenmile Creek Near Helena Mt, Mt
11 hours ago · USGS 06063000
2 cfs 2.09 ft · 59°F 3,962 ft Upper Missouri
Big Muddy Cr Nr Mouth Nr Culbertson Mt, Mt
10 hours ago · USGS 06185110
1 cfs 3.79 ft · 53°F 1,917 ft Big Muddy
Tenmile Creek Near Rimini Mt, Mt
10 hours ago · USGS 06062500
1 cfs 1.16 ft · 58°F 4,852 ft Upper Missouri
Battle Creek Near Chinook Mt, Mt
10 hours ago · USGS 06151500
0 cfs · · 60°F 2,411 ft Battle
Powder River Near Locate Mt, Mt
10 hours ago · USGS 06326500
0 cfs · 62°F 60°F 2,398 ft Lower Powder
Nelson Creek Near Van Norman Mt, Mt
10 hours ago · USGS 06131200
0 cfs 2.27 ft · 61°F 2,297 ft Fort Peck Reservoir
Clear Creek Near Chinook Mt, Mt
10 hours ago · USGS 06142400
0 cfs 1.23 ft · 60°F 2,465 ft Middle Milk
Poplar River At International Boundary, Mt
10 hours ago · USGS 06178000
0 cfs 2.24 ft · 50°F 2,465 ft Poplar
Rock Cr Bl Horse Cr Nr Int Bndry, Mt
10 hours ago · USGS 06169500
0 cfs 2.31 ft · 56°F 2,525 ft Rock
Flatwillow Creek Near Mosby Mt, Mt
10 hours ago · USGS 06130000
0 cfs 3.84 ft · 61°F 2,554 ft Lower Musselshell
Peoples Creek Near Hays Mt, Mt
10 hours ago · USGS 06154400
0 cfs 2.65 ft · 60°F 2,714 ft Peoples
Redwater River At Circle Mt, Mt
10 hours ago · USGS 06177500
0 cfs 3.63 ft · 58°F 2,404 ft Redwater
Rosebud C At Reservation Bndry Nr Kirby Mt, Mt
10 hours ago · USGS 06295113
0 cfs 2.87 ft · 61°F 3,776 ft Rosebud
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See every Montana gauge ranked against normal.

  • Percentile rank & % of median for all 171 gauges
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Whitewater & paddle

Montana river runs

Paddleable river sections in Montana keyed to USGS gauges, with live streamflow and whitewater class.

River run Status Streamflow Air temp Class
Alberton Gorge (St. John To Forrest Grove) · · 33°F III TO IV
Bear Creek To Essex Runnable 445 cfs 55°F II TO III+
Beartrap Canyon - Madison Dam To Route 84 Runnable 1,030 cfs 46°F III TO IV
Bible Run Runnable 529 cfs 54°F III TO IV
Big Creek To Glacier Rim Runnable 1,380 cfs 47°F III- TO III
Border To Polebridge Too Low 432 cfs 45°F II TO II+
Camp Baker To Eden Bridge Runnable 1,970 cfs 41°F II TO II+
Essex To Moccasin Creek Runnable 1,290 cfs 49°F II+
Gardiner Town Run Runnable 1,080 cfs 43°F III- TO III+
Glacier Rim To Blankenship Bridge And Confluence Runnable 4,590 cfs 49°F II
Missoula Town Run Runnable 958 cfs 49°F II TO II+
Moccasin Creek To West Glacier (John Stevens Canyon) Runnable 4,310 cfs 53°F II+ TO III+
Moose To Storm Castle Runnable 308 cfs 51°F III+ TO IV+
Polebridge To Big Creek Runnable 4,590 cfs 49°F II TO III-
Schafer Meadows To Bear Creek (Upper) Runnable 4,310 cfs 53°F III+ TO IV+
West Glacier To Blankenship Bridge Runnable 4,310 cfs 53°F II+ TO III
Yankee Jim Canyon (Joe Brown To Miner) Runnable 1,080 cfs 43°F III TO III+
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Flow report FAQ

About Montana streamflow

What are river levels like in Montana right now?

As of August 27, 2026, Montana rivers are running at 84% of normal across 171 USGS streamgauges, and the Kootenai River Bl Libby Dam Nr Libby Mt is reporting the highest discharge at 9,140 cfs. The full sortable gauge table is below.

Which Montana river is running highest right now?

As of August 27, 2026, the highest discharge in Montana is 9,140 cfs on the Kootenai River Bl Libby Dam Nr Libby Mt. See the sortable gauge table for the full statewide ranking.

Are Montana rivers high or low right now?

Compare the statewide percent-of-normal on this page: above 100% means Montana rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.

Where does the Montana streamflow data come from?

The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.

What is cfs?

Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.

What does Gauge Height mean?

The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").

How fresh is the Montana data?

USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.

Can I get a flow alert for a Montana gauge?

Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.

Is this a substitute for an NWS flood warning?

No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.